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How many bonds can helium make?
Helium is a noble gas and is therefore chemically stable, so it typically does not form bonds with other atoms. Helium's electronic configuration with 2 electrons in its 1s orbital does not allow it to form bonds by sharing electrons with other atoms.
Why is helium normally placed in group 18?
We all know that helium is a noble gas. It has atomic number 2 but it is placed in 18 group be because in 1st group the elements have only one electron in thier s orbital e.g. Hydrogen, lithium, sodium, potassium etc. But helium has two electron so it cannot exist in 1 group. In second group the s orbital are same but the physical and properties of helium is different from the elements present in second group. According to modern periodic table elements which have same physical properties are placed in same group. Since helium is an inert gas and its physical properties are similar to the other elements of the 18 group and also helium discoverd late so that hilium can be put in the 18 group
Does helium atom like to b e by itself?
Helium atoms prefer to be alone because they have a stable electron configuration with a full outer shell of electrons, making them very stable and less likely to form bonds with other atoms. This stability is due to the fact that helium has a filled 1s orbital, making it energetically favorable for helium atoms to exist independently.
What outer sublevels are completely filled in a noble gas?
s orbital for helium and p orbitals for other noble gases.
Why does helium have the highest ionisation energy?
Helium has 2 electrons in the 1s orbital, meaning that these electrons are as close to the nucleus as possible. The nucleus has a positive charge, pulling these negative electrons very tightly. It takes a lot of energy to break this attraction. Having 2 electrons in the 1s orbital also means that it is very stable. Other elements with full outer shells or with electrons in other orbitals having a smaller first ionisation energy than Helium. This is because the electrons in previous orbitals shield the valence (outer) electrons, so the charge of the nucleus isn't felt as much, and is therefore easier to break the attraction.
What is the smallest part of any chemical element that can combine with other elemntes to form compounds?
An atom
What element that is considered unreactive because it has a filled outer energy level is?
Helium is considered unreactive because it has a filled outer energy level with two electrons in its 1s orbital. This makes it very stable and unlikely to form chemical bonds with other elements.
How many bonds can helium make?
Helium is a noble gas and is therefore chemically stable, so it typically does not form bonds with other atoms. Helium's electronic configuration with 2 electrons in its 1s orbital does not allow it to form bonds by sharing electrons with other atoms.
Why is helium normally placed in group 18?
We all know that helium is a noble gas. It has atomic number 2 but it is placed in 18 group be because in 1st group the elements have only one electron in thier s orbital e.g. Hydrogen, lithium, sodium, potassium etc. But helium has two electron so it cannot exist in 1 group. In second group the s orbital are same but the physical and properties of helium is different from the elements present in second group. According to modern periodic table elements which have same physical properties are placed in same group. Since helium is an inert gas and its physical properties are similar to the other elements of the 18 group and also helium discoverd late so that hilium can be put in the 18 group
Does helium atom like to b e by itself?
Helium atoms prefer to be alone because they have a stable electron configuration with a full outer shell of electrons, making them very stable and less likely to form bonds with other atoms. This stability is due to the fact that helium has a filled 1s orbital, making it energetically favorable for helium atoms to exist independently.
Can you Draw a Bohr model of helium?
Two electrons of Helium are not on the same circular orbital. The orbital planes of the two electrons are perpendicular to each other. By a computaional method, the length of both the two orbitals crossing perpendicularly is proved to be just 1 times de Broglie's wavelength when their total energy is consistent with the experimental value of Helium ground state energy. Please see Related links below to get the picture of a Bohr model of helium
What is the Lewis structure for He?
The Lewis structure for Helium is He with two dots next to each other, above the He symbol. The dots must be drawn next to each other, they represent the two electrons found in the 1s-orbital of the Helium atom.
Why helium exist in the form of he not he2?
he2 is a fatty. He atom is a inert gas. so it can not react with any other atom or molecules to form any compounds.so He2 can't exist. ANOTHER ANSWER: Helium atom has only one shell i-e K-shell which can accommodate a maximum of two electrons which it already has. therefore Helium atom does not need any more electrons to become stable as it is already stable by duplet rule. Thus helium atom does not combine with another helium atom and hence exists as He and not He2.
What is helium2?
Helium-2 would refer to an isotope of helium with a nucleus consisting of just two protons and having two orbital electrons. However, no such atom exists in nature as the two positively charged protons repel each other more strongly than the nuclear strong force attracts them to each other. So, even if such a nucleus could be formed somehow, it would split apart very quickly. On the other hand, if you add a neutron to the two protons in the nucleus, then the nuclear strong force is sufficient to keep the protons from flying apart. This, together with two orbiting electrons, is the stable helium-3 atom. The most common isotope of helium is helium-4, with two protons and two neutrons in the nucleus, and two orbital electrons.
What outer sublevels are completely filled in a noble gas?
s orbital for helium and p orbitals for other noble gases.
Helium can be combine with other element?
No. helium is chemically inert and does not combine with other elements.
Why is helium in group 18 in the periodic table?
We all know that helium is a noble gas. It has atomic number 2 but it is placed in 18 group be because in 1st group the elements have only one electron in thier s orbital e.g. Hydrogen, lithium, sodium, potassium etc. But helium has two electron so it cannot exist in 1 group. In second group the s orbital are same but the physical and properties of helium is different from the elements present in second group. According to modern Periodic Table elements which have same physical properties are placed in same group. Since helium is an inert gas and its physical properties are similar to the other elements of the 18 group and also helium discoverd late so that hilium can be put in the 18 group
